1bl8

POTASSIUM CHANNEL (KCSA) FROM STREPTOMYCES LIVIDANSPOTASSIUM CHANNEL (KCSA) FROM STREPTOMYCES LIVIDANS

Structural highlights 1bl8 is a 4 chain structure with sequence from Streptomyces lividans. The February 2003 RCSB PDB Molecule of the Month feature on Potassium Channels by Shuchismita Dutta and David S. Goodsell is 10.2210/rcsb_pdb/mom_2003_2. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 3.2Å Ligands: Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function KCSA_STRLI Acts as a pH-gated potassium ion channel; changing the cytosolic pH from 7 to 4 opens the channel, although it is not clear if this is the physiological stimulus for channel opening. Monovalent cation preference is K(+) > Rb(+) > NH4(+) >> Na(+) > Li(+). Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. See Also Cation-pi interactions Glutamate receptor (GluA2) Ionotropic receptors Potassium channel 3D structures

spinqualitylabelsall models 1bl8, resolution 3.20Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image